CN105300878B - The method that reciprocating friction testing machine frictional force is recorded by positional information - Google Patents
The method that reciprocating friction testing machine frictional force is recorded by positional information Download PDFInfo
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Abstract
Description
技术领域technical field
本发明涉及一种通过位置信息记录往复式摩擦试验机摩擦力的方法。The invention relates to a method for recording the friction force of a reciprocating friction testing machine through position information.
背景技术Background technique
往复式摩擦试验机是当前在进行摩擦实验时一种常用的设备，通过采集摩擦力数据来判断样品表面的摩擦系数，具有结构简单、行程可调、位置可调、节省试验材料等优点。由于基于凸轮或曲柄结构的往复式摩擦试验机，其运动速度符合正弦周期变化，摩擦试件与对偶试件间的相对运动包括从静止到最高线速度的所有速度值，不同速度对应的摩擦力往往各不相同，其中改变方向的过程中会出现零摩擦力和最大静摩擦力，现有的摩擦力采集办法一般是通过定周期采集的方法，造成采集到的摩擦力会存在偏大、偏小或者稳定性差及数据量大等问题。The reciprocating friction testing machine is a commonly used equipment in the current friction experiment. The friction coefficient of the sample surface is judged by collecting friction data. It has the advantages of simple structure, adjustable stroke, adjustable position, and saving test materials. Due to the reciprocating friction testing machine based on the cam or crank structure, its motion speed conforms to the sinusoidal periodic change, the relative motion between the friction specimen and the dual specimen includes all speed values from static to the highest linear speed, and the friction force corresponding to different speeds They are often different. In the process of changing direction, there will be zero friction force and maximum static friction force. The existing friction force collection method is generally through the method of fixed period collection, resulting in the collected friction force will be too large or too small Or problems such as poor stability and large data volume.
发明内容Contents of the invention
针对现有技术存在的缺陷，本发明的目的是提供一种通过位置信息记录往复式摩擦试验机摩擦力的方法，通过判断摩擦试件位置信息，在预设位置记录往复式摩擦试验机摩擦力数据。In view of the defects existing in the prior art, the object of the present invention is to provide a method for recording the friction force of a reciprocating friction testing machine through position information, and record the friction force of a reciprocating friction testing machine at a preset position by judging the position information of a friction test piece data.
为达到上述目的，本发明采用如下技术方案：To achieve the above object, the present invention adopts the following technical solutions:
一种通过位置信息记录往复式摩擦试验机摩擦力的方法，通过判断摩擦试件的位置信息，在摩擦试件通过预设位置时，实时记录往复式摩擦试验机摩擦力数据，具体步骤如下：A method for recording the friction force of a reciprocating friction testing machine through position information. By judging the position information of a friction test piece, when the friction test piece passes a preset position, the friction data of the reciprocating friction testing machine are recorded in real time. The specific steps are as follows:
1）在固定有摩擦试件的往复运动平台指定位置上安装反馈物体，然后使往复运动平台进行往复运动；1) Install the feedback object on the designated position of the reciprocating motion platform with the friction test piece fixed, and then make the reciprocating motion platform reciprocate;
2）在指定位置安装传感器，并连接上位机，通过上位机控制；当往复运动平台上的反馈物体运动到与传感器对应的预设位置时，传感器传送到上位机的信号信息与上位机预设信息相同，控制程序采集一个摩擦试件的摩擦力数据传送到上位机。2) Install the sensor at the designated position, connect it to the host computer, and control it through the host computer; when the feedback object on the reciprocating motion platform moves to the preset position corresponding to the sensor, the signal information transmitted by the sensor to the host computer is consistent with the preset position of the host computer. The information is the same, the control program collects the friction data of a friction test piece and transmits it to the host computer.
所述步骤2）中的传感器为开关型传感器或位移传感器中的一种或者几种相互配合。The sensor in step 2) is one or more of switch sensors or displacement sensors that cooperate with each other.
与现有技术相比，本发明具有如下突出的实质性特点和显著的优点：Compared with the prior art, the present invention has the following prominent substantive features and remarkable advantages:
本发明通过判断摩擦试件的位置信息，在预设位置记录往复式摩擦试验机摩擦力数据可有效解决通过定周期采集摩擦力数据的方法存在的摩擦力数据偏差大、不稳定及数据量大的问题。The present invention records the friction data of the reciprocating friction testing machine at the preset position by judging the position information of the friction test piece, which can effectively solve the problems of large deviation, instability and large amount of friction data in the method of collecting friction data at regular intervals The problem.
附图说明Description of drawings
图1为使用开关型传感器判断摩擦试件位置信息的示意图。Fig. 1 is a schematic diagram of using a switch sensor to determine the position information of a friction test piece.
图2为使用位移传感器判断摩擦试件位置信息的示意图。Fig. 2 is a schematic diagram of using a displacement sensor to determine the position information of a friction test piece.
具体实施方式Detailed ways
下面结合附图，对本发明的具体实施例做进一步的说明。The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
实施例1Example 1
如图1所示，一种通过位置信息记录往复式摩擦试验机摩擦力的方法，通过判断摩擦试件的位置信息，在摩擦试件通过预设位置时，实时记录往复式摩擦试验机摩擦力数据，具体步骤如下：As shown in Figure 1, a method for recording the friction force of a reciprocating friction testing machine through position information, by judging the position information of the friction test piece, when the friction test piece passes the preset position, the friction force of the reciprocating friction testing machine is recorded in real time data, the specific steps are as follows:
1）在固定有摩擦试件的往复运动平台指定位置上安装反馈物体，然后使往复运动平台进行往复运动；1) Install the feedback object on the designated position of the reciprocating motion platform with the friction test piece fixed, and then make the reciprocating motion platform reciprocate;
2）在指定位置安装传感器，并连接上位机，通过上位机控制；当往复运动平台上的反馈物体运动到与传感器对应的预设位置时，传感器传送到上位机的信号信息与上位机预设信息相同，控制程序采集一个摩擦试件的摩擦力数据传送到上位机。2) Install the sensor at the designated position, connect it to the host computer, and control it through the host computer; when the feedback object on the reciprocating motion platform moves to the preset position corresponding to the sensor, the signal information transmitted by the sensor to the host computer is consistent with the preset position of the host computer. The information is the same, the control program collects the friction data of a friction test piece and transmits it to the host computer.
实施例2Example 2
本实施例与实施例1基本相同，不同之处在于，所述传感器选取红外光电开关。This embodiment is basically the same as Embodiment 1, except that the sensor is an infrared photoelectric switch.
实施例3Example 3
本实施例与实施例1基本相同，不同之处在于，所述传感器选取激光光电开关。This embodiment is basically the same as Embodiment 1, except that the sensor is a laser photoelectric switch.
实施例4Example 4
本实施例与实施例1基本相同，不同之处在于，所述传感器选取位移传感器。This embodiment is basically the same as Embodiment 1, except that the sensor is a displacement sensor.
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| CN106895957B (en) * | 2017-04-09 | 2019-06-07 | 北京工业大学 | One kind is for disc type experimental provision in micro groove sliding drag reduction PIV experiment |
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| CN202188928U (en) * | 2011-07-13 | 2012-04-11 | 昆明理工大学 | Real-time measuring device for reciprocating motion friction force |
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